Finding the Fourth Proportional to 5,623,791,864.40, 8,435,687,796.60 and 4,712,264,261.20
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Solution
The fourth proportional to 5,623,791,864.40, 8,435,687,796.60 and 4,712,264,261.20 is: 7,068,396,391.80
Step by Step Solution
- Step 1: Write the proportion equation
5,623,791,864.40 : 8,435,687,796.60 = 4,712,264,261.20 : x - Step 2: Convert to fraction form
5,623,791,864.40/8,435,687,796.60 = 4,712,264,261.20/x - Step 3: Cross multiply
5,623,791,864.40x = 8,435,687,796.60 × 4,712,264,261.20 - Step 4: Simplify right side
5,623,791,864.40x = 39,751,190,122,559,152,128 - Step 5: Solve for x
x = 39,751,190,122,559,152,128/5,623,791,864.40 - Step 6: Final answer
x = 7,068,396,391.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.